Tractor attachment



Aug. 11, 1936.L c. l.. EBlNG 2,050,936

` TRACTOR ATTACHMENT Filed Aug. 28, 1935 ATTORNEY Patented Aug. 1 1, 1936 UNHTED STTES 1 Claim.

This invention relates to grousers for endless tracks of tractors, and has for the primary object the provision of a readily detachable device of this character which will provide traction calks or grips to meet with certain ground conditions and having means for removably securing thereto traction calks or lugs capable of digging or biting into hard or frozen ground and thereby securing efcient traction on all grades and ground conditions and which may be easily removed when not needed.

With these and other objects in View, this in- Vention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a vertical sectional view illustrating a grouser constructed in accordance with my invention and showing the same applied to a tread plate of a tractor track.

Figure 2 is a top plan view illustrating the grouser.

Figure 3 is a plan view illustrating the tread plate.

Figure 4 is an end View illustrating the grouser.

Figure 5 is a perspective view illustrating one of the calks.

Referring in detail to the drawing, the numeral I indicates a conventional type of tread plate of a tractor tread wherein the ends are provided with notches 2. The inner walls of the notches are disposed at an inclination, as shown at 3, and said notches open outwardly through the ends of the tread plate.

A grouser i is mounted on the tread plate i and includes an elongated body 5 having a cutaway portion 6 to define spaced projections 1. At one edge of the body is a flange 8 forming a calk. The fiange is integral with the body 5 and arranged at right angles thereto and also integral with the flange and body is a rib 9 cooperating with the flange in defining calks on the tread face of the body. 5

A lug IB is formed integrally with the body 5 adjacent one end and extends at an inclination to said body to be received by one of the notches of the tread plate and is provided with flanges Il to engage under the bifurcated portions de- 10 fined by said notches. The other end of the grouser or the body 5 thereof is providedwith an opening I2 surrounded by a seat I3 to receive a head of a bolt I4 when passed through the opening I2. The bolt extends through the 15 other notch of the tread plate and has turned thereon a nut I5 whereby the grouser is releasably secured to the tread plate.

Upstanding walls i6 are formed integrally with the ange 8 and the body 5 of the grouser 20 to form pockets I7. The pockets Il removably receive calks I8 which project beyond the flange 8 for biting into the ground. Each calk is grooved, as shown at I9, to receive a bolt or like fastener 20 threaded to walls of the pockets. 25 Lock Washers 2I are provided on the bolts for preventing said bolts from working loose. The bolts permit the calks I8 to be applied and removed from the grouser when desired.

Having described the invention, I claim: 30

A tractor attachment comprising a grouser including a body, a flange integral with one edge of the body and arranged at right angles thereto, a rib integral with the flange and body and extending at right angles to said flange, 35 pockets formed on said body and flange and arranged at opposite sides of the rib, calks received in said pockets and having grooves, and bolts threaded to walls of said pockets and extending into the grooves to releasably secure the 40 calks in the pockets.

CHARLES L. EBING. 

